The Chromium base, which is what Steam is built upon, itself isn’t supported on Win 7,8. Can Valve work upon it to make it backwards compatible? Maybe. Will it be a pain in the ass to maintain? Absolutely.
Also, if you don’t want to upgrade to Win11, you can make a 2nd partition for Linux and enjoy your games.
🧑🚀 🔫 👨🚀